Railway draft-rigging.



J. P. OOONNOR.

RAILWAY DRAFT RIGGING.

APPLIUATION FILED IEB.5, 1912.

Patented Aug. 12, 1913.

, 3 SHEETS-SHEET l.

m um INVENTOR U a fin f.-

? OU/wr /7/5 ATT 3 SHEETS SHEET Patented Aug". 12,

INVENTOR h F O Y fl/ls ATTO OOONNUB.

HMLWAY DRAFT RIGGINU,

i'a'L-luA'HuN FILED $232.5. 1: 12

WKTNESSES J. P. OC'ONNOR.

RAILWAY DRAFT RIGGING.

APPLICATION FILED FEB.5,1912,

3 SHEETS SHEET 3.

, I, BY

/1/. 9ATTOR Y Patented Aug. 12, 1913.

UNITED STATES PATENT OFFICE.

JOHN F. oconnon, or 'cnrca'eo, ILLINOIS, assxenoa 'ro winner: 1!. Minna, or

CHICAGO,

ILLINOIS.

RAILWAY DRAFT-RIGGING.

Specification of Letters l atent;

Patented Au 12,1913.

To all whom it may concern:

Be it known that I, JOHN F. OCoNNoR, a citizen of the United States, residing at Chicago, in the county of Cook. and State ent thereon filed in the United States Patent Ofiice on December 9th, 1911, as Serial No. 664,755. v

In the accompanying drawings forming a part of this specification Figure 1 is an elevation partly in central longitudinal secrier plate.

tion of a friction spring iraft rigging embodying my invention. ig. 2 is a plan view partly in horizontal section. Fig. 3 is a horizontal section showing the position of parts within the friction shell and spring cage on preliminary buffing movement with the supplemental spring compressed. Fig. 4 is a horizontal section showing the position of parts in full buff. Fig, 5 is a cross section on line 5, 5 of Fig. 1. ig. 6 is a.

cross section on line 6, 6 of Fig. 1. Fig. 7 is a perspective view of the shell showing the friction'shell and spring cage integral therewith. Fig. 8 is a pers 'ctive view of one of the friction shoes. ig. 9 is a perspective view of the wedge 01' spreader block. Fig. 10 is a perspective view of the doublefaced spring seat.

In the drawings 11 are the draft sills or members of the car frame to which the draft rigging is applied. 12 the end sill. 13 the carry iron. lithe buffer block. 15 the draw bar. 16 the draft yoke. 17 the car- 18 rear stop members secured to thad'raft members or sills, preferably by the rivets 19, and having rear stop shoul; ders 20.

21 are front stop members having front stop shoulders 22, and limiting stop shoulde s 23 and 24.

2.5 is the front follower.

The rear follower 26 preferably consists of the preferably integral rear end of the shell 27, the shell 27 consisting of a spring cage 28 and ,a friction cylinder 29, preferably integral with the spring cage. The spring cage 28 is preferably of ,a general rectan ular shape, and contains the preferably side by sidearranged spring cushioningmembers or main springs 30, 30, each of which preferably lncloses a smaller spring 31, 31 nested within it.- The spring cage 28 isprevided with longitudinal slots or openings 32 in upright faces 33 which fit bet-ween the center sills 11, the upright faces of the spring cage serving as guides in its reciprocating movements The openings 32 permit the insertion into the spring cage of the inaiii springs 30, 3t) and 31, 31. The upper and lower horizontal faces 34 a1 1'd 35 respectively of thespring cage engage the innerface. of the raft yoke 16, the lower member of which raft oke up'Qn' the carrier plate 17, which thus supports the entire cushioning mechanism ofthe draft rigging.

The friction cylinder 29' is cylindrical in form or circular in cross section, and has a longitudinal annular friction face36;which is in sliding frictional contactwith the exterior friction face 37 of the segmental friction shoes 38, which are preferably three in number. Each of the friction shoes 38 has an incline or wedging inner face 39' furnished wit a stop shoulder lm Which limits the release position of the anti-friction roller 41,'one of which is interposed between each of the friction shoes and the corresponding 1 wedge face 42 of the wedge 43 which abuts lagainst the front follower 25. The wedge iis preferably of pyramidal form and with I three wedge faces, one for each of the fricition shoes, and each inclined face of the wedge has a shoulder 44 to retain the antilfriction'roller 41 in its proper transverse E arrangement. Each of the friction 'shoes is i also provided with shoulders 45 for engagement with the ends of the anti-friction roller BEST AVAlLABLE (305;.

. .-li to hee g'the .rollerlin" position lengthwise The frict-um feusb tonmg members 'cons stmg. "of the wedge. fl'lCllOlliflilOGS and-anti-fricv tion rollers arciwithin-the friction. shelle2t't, \\i|lt'il "is preferably integral with thespring case 28 formingfthe'shell 27.

the' forward cor'ners'40 of the spring cage serve as stop shouldersforxen agement with [the rear'liaiiting stop shoulc ers-Qtofthe front stop members '21. I The forward ends of the lninin "springs 31,31 and 32 32 engage the rear face 47 of thedoubi spring seat 48; the rear face 47 of the spring seat being preferablyyprovided 'with the bosses 40, 40, around which the inner sprinps 81.31 are seated at their forward ends. T to forward face of the spring seat 48 is prorider] with a collar 50 within which the rear emlnf the supplemental spring brie-seated. The forward end of the supplemental spring is seated against the annularl arranged segmental-friction'shoes 38, an preferably againsttheirt'eur end faces 52.

The double faced spring seat 48 is provided with a central hearing or hub portion as containing the perforation M for t to assure of the short connecting rod 55, w iich also extends through the perforation. 56in the wedgelil. ,The wedge 43 is rovided at its forward end with a recess 8'suitably eonstructedito r'eeeivethe nutot); which is turned ,on the threaded forward end of the short connecting rod 55.: The rear-cndof the conneetinp rod .ooi'is provided with .a head '60 whici is received within the recess o1 provided on the rear face of the' double fared spring seat. J The mat faeoofthedonble faced spring seat iii-provided at either side with the ribs trgjtttz,"preferably two on either-sidcofthe (Oiitll 48,'thcfronted s of each of. ribs being provided wit an upright groove groove 64 provided inzthe horizontal isposed transverse r bs 05 in'the inner front corners-of the spring cage, 'snd whichw'sre preferably integral with the spring on .and bein in apposition'respeettvelytot e as u-hiehregisterswith a similar *upri hthead 68. and at the lowerend are threaded I arts of draft rigging, as illustrated ln' ifggQ of'the to receive thonuttlt). .:In' normal position of the drawin s,the-forward edgei'lO o hecollnr .48 of t edoubleifacedgspring' seat is so a-' rated by s redeteriuinedispace} from he rose ends'of e'fr ction shoes 88.-'.- In assem- M biing ths 'ge'sr the j-frictionr'cushioning,mem-' said ribs 02 o the double faced spring lest. E2?

"bersfare' laced within the friction cylinder. IThe Jshort eonnccting bolt, supplemental .isprmgjand,double-faced spring seat are p aeetl'r'itliin the shell. Themaiu springs are thentlriren into place through the lateral openings of the spring cage, and an initialcompression given'thogear. The stop holtstiiare then slipped in, and serve to "keepthe mainsprings in a state of initial com ression. I

T e transverse ribs 65 m the forward cornets-of the spring cage, and the transverse ribs 62 on the forward ,face of the double faced sprin seat prevent the subjection of thestop bo ts to bending moment, thesaid stop bolts being subjected-only to pressure exerted by the opposite arranged ribs of the spring cage and doubi faced spring seat. The connecting rod 55 extending as it does only between the wedge at one end and the "double faced spring seat at the'other permits the use'of larger main springs'of a hi her compression resisting capacity than t 050 which may be employed 1n connection with a connecting rod extending from the wedge at one end to the rear end of the spring cage at the other.

I am also enabled by my invention to dispense with the use of a thimble between the double faced spring seat and the wedge. The initial loadingv of the .main spring.

which is preferably greater than thecom pressed capacity of the supplemental spring 'blfi is maintained by the stop bolts 87. a

he stop-bolts or keys 87-67 are in reffarable construction accessible from wi hout the-'spring-eage. The stop-bolts or keys serve to prevent the distortionof the springesge orshell 'under abnormal loads or shocksy'asiwell'as to keep the mainsprings in a state ofinitisl compression.

nation with adrsw bar',dra t yoke and stopmembers, a shell comprising a friction cylinder and .s springcage' connected therewith, friction shoes and wedge within the friction cylinder, anti-friction rollers between said wedge andshoes, main sprin within said spring cage a two faced spring seat and a supplemental spring, of means to keep the mam springs in a state of initial compresmemberinfriction shell, friction cushioninp members and main springs-within the shel atwo-faced spring seat and a supplemental sio n" cpmprising stop bolts yertically disposed in thesprmg cage.

spring-within said shell of means to keep 425 emain springsjn a state-of initial compressiong 'comprismg keys arran ad transversely of said shell and passing t rough the saids tell-i Q a i *8. In a frictiondra'ft rigging the combination with a longitudinally movable friction shell, of a wedge and friction shoes within the shell, adouble faced spri'n seat main springskngaging orge side 0 said sprifig seat, a supplemental spring interposed between the other side of said spring seat and the friction shoes, the said spring JOHN F. OCONNOR.

Witnesses:

GEO. A.'J0HNs0N, ELEANOR L. NASH.

Copies of this patent may be detained tor five cents each, by addressing the Commissioner otE-atents,

W'uhington, D. G. 

